Yamaha GX-900, Руководство по обслуживанию

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1. Procedure to change the EE-PROM and write the
initial value of the microprocessor into EE-PROM
(1) Replace the EE-PROM.
(2) Refer to the latest “List of EE-PROM contents”.
(3) Press the STANDBY/ON button while pressing the
REC PAUSE(MD) button and the
w
/
d
(CD) button to
start the test mode.
(4) Version on display
Version of EEPROM protect data (from 01)
t s m 1 3 * * e * *
Version of microprocessor ROM (from 01)
(5) Load a disc.
[
AUT YOBI
]
(6) Press the INPUT
w
button 6 times.
[ EEPROM SET ]
(7) Perform the procedure to have “EE-PROM setting
mode transition diagram” displayed, compare it with
“List of EE-PROM contents” and set to “List of EE-
PROM contents” by using the jog dial.
(8) Set the temperature standard value.
(Refer to “Procedure to set the temperature standard
value”.)
(9) Use the same settings as “List of EE-PROM con-
tents” for all.
10) Set to the TEST mode and perform AUTO pre-
adjustment and AUTO adjustment.
11) Cancel the TEST mode by pressing the
a
(MD)
button. (Writing into EEPROM starts from here.)
2. Procedure to set the temperature standard value
(This setting should be performed within the room
temperature range of 21 ˚C ~ 29 ˚C.)
(1) Have the AUTO pre-adjustment mode menu dis-
played.
[
AUT YOBI
]
(2) Compensate the temperature to be suitable for the
ambient temperature, referring to the table below.
Example : When the ambient temperature is 22 ˚C
and the temperature measured value is 7A
H
Temperature set value = 7A
H
– 01
H
= 79
H
* When the measured temperature deflects between 2
values, use the smaller one as the measured value
(79
H
if measured values are 7A
H
and 79
H
).
(3) Press the MD
r
button 6 times.
[ EEPROM SET ]
(4) Press the REC/PAUSE(MD) button 7 times.
[ Focus ]
Ambient temperature Compensation value
+ 21.0 ˚C ~ + 23.2 ˚C – 01
H
+ 23.3 ˚C ~ + 26.8 ˚C
±
0
H
+ 26.9 ˚C ~ + 23.7 ˚C + 01
H
PROCEDURE TO WRITE DATA INTO EE-PROM (IC1402)
●
Focus setting
Item on display Set value
FG
❍ ❍
DA
H
FF1
❍ ❍
70
H
FF2
❍ ❍
E0
H
FZHLEV ❍ ❍
ED
H
FOKLEVn
❍ ❍
08
H
FOKLEVf ❍ ❍
08
H
FOKLPFn
❍ ❍
00
H
FOKPFVf ❍ ❍
88
H
WAITf
❍ ❍
90
H
●
Spin setting
Item on display Set value
SPG
❍ ❍
20
H
SPG-in
❍ ❍
B8
H
SPG-mid
❍ ❍
95
H
SPG-out
❍ ❍
79
H
SP1 ❍ ❍
10
H
SP2
❍ ❍
87
H
SP3 ❍ ❍
E3
H
SP4
❍ ❍
E3
H
SP5 ❍ ❍
10
H
SPDLIM
❍ ❍
7F
H
Item on display Set value
TG ❍ ❍
6B
H
TF1
❍ ❍
6B
H
TF2 ❍ ❍
E0
H
SVCNT4
❍ ❍
00
H
TRBLVo
❍ ❍
50
H
TRBLVt
❍ ❍
54
H
TRkLVo
❍ ❍
50
H
TRkLVt
❍ ❍
2E
H
TDPWo
❍ ❍
89
H
TDPWt
❍ ❍
1A
H
SLCTo
❍ ❍
00
H
SLCTt ❍ ❍
40
H
SLCTm
❍ ❍
53
H
TCRSCIP ❍ ❍
16
H
COTLVP
❍ ❍
0A
H
COTLVr ❍ ❍
1C
H
WAITm
❍ ❍
FF
H
●
Tracking setting
LIST OF EE-PROM CONTENTS
(5) Press the MD
r
button 4 times.
[ Temp ]
(6) Press the REC/PAUSE(MD) button.
[ TEMP ❍ ❍ ◆ ◆ ]
❍ ❍
: Temperature measured value
◆ ◆
: Temperature set value
(7) Adjust the temperature set value to the value ob-
tained as described above by using the jog dial.
(8) Press the CHARACTER button.
[ EEPROM SET ]
36